<template>

  <div class="login_container" >
    <img src="https://iconfont.alicdn.com/s/9c4bdaae-427b-42c2-8162-8baa522abc0b_origin.svg" alt=""  >
    <div style=" position:absolute;width:1000px;height:100px;z-indent:2;left:39%;top:4%;font-size:40px;color: rgb(48, 145, 190)">
        欢迎来到悦购管理系统
    </div>
    <div class="login_box">
      <div class="avatar_box">
        <img
          src="@/assets/first.png"
          alt=""
        />
      </div>
      <!--表单区域-->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="loginFormRules"
        label-width="0px"
        class="login_form"
      >
        <!--用户名-->
        <el-form-item  >
           
          <el-input
            v-model="loginForm.username"
            prefix-icon="iconfont icon-user"
            style="alpha:0.6"
          ></el-input>
           
        </el-form-item>
        <!--密码-->
        <el-form-item >
            
          <el-input
            v-model="loginForm.password" 
            prefix-icon="iconfont icon-3702mima"
            type="password"
             style="alpha:0.6"
          ></el-input>  
            
        </el-form-item>
        <!--按钮-->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //这是登陆表单的数据绑定对象
      loginForm: {
        username: "admin",
        password: "123456",
      },
      //表单的验证规则对象
      loginFormRules: {
        //验证用户名是否合法
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名长度在 3 到 10个字符之间",
            trigger: "blur",
          },
        ],
        //验证密码是否合法
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "密码长度在 6 到 15个字符之间",
            trigger: "blur",
          },
        ],
      },
    };
  },
  methods: {
    //点击重置按钮，重置登陆表单
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields();
    },
    login() {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return;
        const { data: res } = await this.$http.post("login", this.loginForm);
        if (res.meta.status !== 200)
          return this.$message.error("登陆失败,账号或者用户名错误!");
        this.$message.success("登陆成功");
        //1.将登陆成功之后的token,保存到客户端的sessionStorage中
        //  1.1项目中出现了登陆之外的其他API接口,必须在登陆之后才能访问
        //   1.2token只应当在当前网站打开期间生效，所以将token保存在sessionStorage中
        window.sessionStorage.setItem("token", res.data.token);
        //2.通过编程式导航跳转到后台主页，路由地址是/home
        this.$router.push("/home");
      });
    },
  },
};
</script>

<style lang="less" scoped>
.login_container {
  background-color: rgba(235, 240, 243, 0.904);
  height: 105%;
  img {
    width: 60%;
    height: 100%;
  }
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: rgba(204, 226, 226, 0.973);
  border-radius: 3px;
  position: absolute;
  left: 75%;
  top: 48%;
  box-shadow: 10px  10px 40px  rgb(123, 182, 207);
  transform: translate(-50%, -50%);
  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid rgb(175, 131, 131);
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px  rgb(190, 150, 150);
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgb(194, 214, 122);
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: rgb(197, 55, 55);
    }
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}

.el-form{
   background-color:transparent;
}




</style>